Improvement in filters



R. L'. GENTRY.

Filters.

Pt'ented`Nov.r3,1874.

INVEIIT H:

ATTIBNEYS.

UNITED STATES PATENT QEEICE.

' RICHARD L. GENTRY, OF RICHMOND, KENTUCKY.

y IMPROVEMENT IN FILTERS.

Specification formingpart of Letters Patent No. 156,481, dated November 3, 1874; application filed May 23, 1874.

To all whom it may concern:

Be it known that I, RICHARD L. GENTRY, of Richmond, in the county of' Madison and State of Kentucky, have invented a new and Improved Filter, of which the following is a other water is passed before being collected in the cistern or otherwise applied for Ause 5 and it consists of an outer and inner chamber filled with filtering material, to which the water is admitted by a supply-pipe passing through a perforated bottom of the outer chamber and side apertures of' the inner chamber into the latter, rising therein until reaching the height ofthe central discharge-pipe, from which it is carried to the cistern or other place. A perforated outlet-hole of' the discharge-pipe, near the bottomvofl the inner chamber, drains the `filtering material from the remaining water,

while a screw-spout ofthe outer chamber allows the cleansing of' the filter from impurities.

ln the drawing, A represents the outer vessel, preferably of' cylindrical shape and galvanized iron, which is provided with a detachable top and enterance or supply-pipe, B', soldered centrally to the top. The dischargepipe. B is soldered to a central aperture of the bottom of vessel A, and rises to suitable height therein. A metal screw-cap or faucet, a, near the bottoni of' vessel A, serves for washing out and driving oi' all impurities and sediments accumulating in the filter. A small perforated cone, b, surrounding an outlet-hole,

is placed around the discharge-pipe, resting on the bottom ofthe outer vessel, and forming therewith an inner and outer chamber. Tube C has side apertures d at its lowery part, and above the same and screw-cap a a horizontal flange or rim, l), which extends to the periphery of vessel A and'forms the bottom of the outer filtering-chamber. Tube C is filled with charcoal, pebbles, or other filtering material nearly up to the upper end of the dischargepipe, to which is then attached aperforated disk, E, of the diameter of tube C. The cover of' top C is then placed on the tube C, and the space above and around the same in the outer chamber filled up completely with filtering material.

The rain or other water passes through the filter, as indicated by arrows in Fig. l, from the discharge-pipe through the outer chamber to the perforated bottom thereof, and thence, through the side apertures to the inner chamber, rises by the pressure of thewater in the same above the perforated disk, and over'the discharge-pipe, and is then conducted off by the latter to the cistern. or other place of use, being then completely cleansed from all impurities adhering thereto.

Having thus described my invention, I claim as new and desire to secure by Letters Patentpose specified.

. RICHARD L. GENTRY. Witnesses:`

WM. W. Prec, W. E. MYERS. 

